NYC Parks are having events that include hiking and volunteering. The volunteer hours would count as conservation service hours. Links are attached for further information.
Event 1
March for the Earth Volunteer Day (16 and over event)
https://www.nycgovparks.org/events/2018/03/25/march-for-the-earth-volunteer-day
Sunday, March 25, 2018 – 10AM-1PM- Queens Botanical Garden
Event 2
Horticulture Volunteer Days (16 and over event)
https://www.nycgovparks.org/events/2018/04/05/horticulture-volunteer-days
Thursday April 5 – 9am- 12pm – Queens Botanical Garden
Event 3
The Pelham Bay Super Hike
https://www.nycgovparks.org/events/2018/03/24/the-pelham-bay-super-hike-vigorous
Saturday, March 24, 2018 10:00 a.m.–2:00 p.m Pelham Bay Nature Center
Event 4
Survival Skills: Maps and Compasses
survival-skills-maps-and-compasses
Saturday, March 24, 2018 – 1:00 p.m.–2:30 p.m – Salt Marsh Nature Center in Marine Park